I think that most of the time the poster is not even aware of the old topic. So he's out on that one. But when posting links for informational purposes as in all other posts one should be clear as to why it is being done or else egos will be bruised. Brevity may be mistaken for ire in those circumstances. People post stuff I talked about earlier all the time. Sethan just did it. My posts in his thread were just playful jests not jumping on him for reposting info. And it brought something new to the table. I just wish people would be interested enough in the things I like talking about to post them more often. like the planet building thread or the comet one. I wonder if anyone has seen it yet. No one posted that they had... See?
I vote for the link and an explanation as to highlights missed inthe current post if possible. that makes the link relevant.